#include <string.h>
#include <stdio.h>
int main()
{
	char arr1[] = "abcdef";
	char arr2[] = { 'a', 'b', 'c', 'd', 'e', 'f', '\0' };
	printf("%zd\n", strlen(arr1));
	printf("%zd\n", strlen(arr2));
	return 0;
}